Featuring sturdy, chip-resistant polypropylene construction and a finish that won't stain or peel, the Lustra toilet seat is ideal for commercial or institutional applications. This elongated, open-front seat features self-sustaining check hinges that hold the seat in any raised position up to 11 degrees beyond vertical. Kohler® Toilet Seat, Lustra™, Elongated Bowl, Self-Sustaining Check Hinge, Open Front, 5-1/2 in Mounting Hole, 15-1/8 in Width, 1-1/8 in Height, 19 in Length, Plastic, White